RTC PCF8563 I2C - real-time clock - Waveshare 3707

The module is equipped with chip PCF8563. It provides accurate and independent intervals. Operating voltage is from 1.8 V to 5.5 V. It allows you to read the time in hours, minutes, and seconds, date: month, day, year. Communication is performed via the I2C bus. An additional advantage is the possibility of generating frequencies: 32.768 kHz, 1,024 kHz, 32 Hz or 1 Hz.

The module also allows for a cascading connection on other devices on the I2C bus.

• Supply voltage: from 1.8 V to 5.5 V
• Chip: PCF8563
• Mountedbattery CR122
• Soldered goldpin connectors - 2.54 mm raster
• The ability to cascade connect the next module attached
• Jumper to select the supply voltage of the external DC or battery power BAT

• The website of the manufacturer Waveshare
• Diagram of the module
• System documentation PCF8563
• Sample program